No, this is not a bug in R, but a report to you by R of a problem with your code. It means that the difference of two values of your function evaluated to a non-finite value when doing finite-differencing. Non-finite values are Inf, -Inf or NaN.
There is nothing to reproduce here, your version of R is long obsolete and you are asking a question. Please do study the FAQ *before* posting an unhelpful non-bug report like this. On Wed, 1 Nov 2006, [EMAIL PROTECTED] wrote: > Full_Name: Adrian Bell > Version: 2.2.0 > OS: Windows XP Prof > Submission from: (NULL) (169.237.62.194) > > > Mysterious error that I do not know how to get around. > > Error in optim(...) > non-finite finite-difference value > > For me, this has occurred for methods Nelder-Mead and L-BFGS-B. > > What does it mean? Is it a bug? I have tried several things including coercing > the function being optimized to be finite. > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
